Clinical significance of occult cerebrospinal fluid involvement assessed by flow cytometry in non-Hodgkin’s lymphoma patients at high risk of central nervous system disease in the rituximab era

This work was supported in part by grants P-EF ⁄ 08 from Jose Carreras International Leukemia Foundation, RD 06 ⁄ 0020 ⁄ 1056 from RETICS and an unrestricted grant from Mundipharma Pharmaceuticals, SL.